/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.piston.launcher;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.KeyEvent;
import android.view.View;
import android.widget.FrameLayout;

/**
 * A ViewGroup that coordinated dragging across its dscendants
 */
public class DragLayer extends FrameLayout {
	DragController mDragController;

	/**
	 * Used to create a new DragLayer from XML.
	 * 
	 * @param context
	 *            The application's context.
	 * @param attrs
	 *            The attribtues set containing the Workspace's customization
	 *            values.
	 */
	public DragLayer(Context context, AttributeSet attrs) {
		super(context, attrs);
	}

	public void setDragController(DragController controller) {
		mDragController = controller;
	}

	@Override
	public boolean dispatchKeyEvent(KeyEvent event) {
		return mDragController.dispatchKeyEvent(event)
				|| super.dispatchKeyEvent(event);
	}

	@Override
	public boolean onInterceptTouchEvent(MotionEvent ev) {
		return mDragController.onInterceptTouchEvent(ev);
	}

	@Override
	public boolean onTouchEvent(MotionEvent ev) {
		return mDragController.onTouchEvent(ev);
	}

	@Override
	public boolean dispatchUnhandledMove(View focused, int direction) {
		return mDragController.dispatchUnhandledMove(focused, direction);
	}
}
